./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash faa92f3a348dfbe60d7663031fcd6f715676a2874c7581f2c55a3b15e2409056 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:10:15,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:10:15,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:10:15,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:10:15,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:10:15,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:10:15,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:10:15,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:10:15,432 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:10:15,432 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:10:15,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:10:15,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:10:15,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:10:15,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:10:15,433 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:10:15,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:10:15,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:10:15,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:10:15,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:10:15,434 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:10:15,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:10:15,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:10:15,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:10:15,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:10:15,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:10:15,436 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:10:15,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:10:15,436 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faa92f3a348dfbe60d7663031fcd6f715676a2874c7581f2c55a3b15e2409056 [2024-12-02 12:10:15,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:10:15,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:10:15,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:10:15,655 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:10:15,655 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:10:15,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-12-02 12:10:18,256 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/data/2d952887f/958b26cb4d35487eb5d079119092c3d5/FLAG83e7c96c0 [2024-12-02 12:10:18,636 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:10:18,636 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-12-02 12:10:18,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/data/2d952887f/958b26cb4d35487eb5d079119092c3d5/FLAG83e7c96c0 [2024-12-02 12:10:18,826 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/data/2d952887f/958b26cb4d35487eb5d079119092c3d5 [2024-12-02 12:10:18,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:10:18,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:10:18,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:10:18,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:10:18,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:10:18,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:10:18" (1/1) ... [2024-12-02 12:10:18,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb0a899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:18, skipping insertion in model container [2024-12-02 12:10:18,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:10:18" (1/1) ... [2024-12-02 12:10:18,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:10:19,213 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c[15510,15523] [2024-12-02 12:10:19,256 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c[23258,23271] [2024-12-02 12:10:19,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:10:19,847 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:10:19,879 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c[15510,15523] [2024-12-02 12:10:19,889 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c[23258,23271] [2024-12-02 12:10:20,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:10:20,337 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:10:20,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20 WrapperNode [2024-12-02 12:10:20,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:10:20,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:10:20,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:10:20,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:10:20,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:20,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:20,643 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5155 [2024-12-02 12:10:20,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:10:20,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:10:20,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:10:20,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:10:20,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:20,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:20,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:20,871 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 12:10:20,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:20,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:20,943 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:20,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:20,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:21,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:21,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:21,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:10:21,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:10:21,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:10:21,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:10:21,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (1/1) ... [2024-12-02 12:10:21,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:10:21,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:21,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:10:21,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:10:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:10:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:10:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:10:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:10:21,193 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:10:21,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:10:25,788 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-12-02 12:10:25,788 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:10:25,816 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:10:25,816 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 12:10:25,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:10:25 BoogieIcfgContainer [2024-12-02 12:10:25,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:10:25,819 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:10:25,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:10:25,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:10:25,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:10:18" (1/3) ... [2024-12-02 12:10:25,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e99c64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:10:25, skipping insertion in model container [2024-12-02 12:10:25,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:10:20" (2/3) ... [2024-12-02 12:10:25,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e99c64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:10:25, skipping insertion in model container [2024-12-02 12:10:25,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:10:25" (3/3) ... [2024-12-02 12:10:25,826 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-12-02 12:10:25,842 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:10:25,844 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label09.c that has 1 procedures, 916 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 12:10:25,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:10:25,922 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3157877c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:10:25,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 12:10:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:25,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-02 12:10:25,933 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:25,933 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:25,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:25,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:25,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2028897015, now seen corresponding path program 1 times [2024-12-02 12:10:25,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:25,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888877731] [2024-12-02 12:10:25,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:25,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:26,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:26,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888877731] [2024-12-02 12:10:26,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888877731] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:26,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:26,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:10:26,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045002016] [2024-12-02 12:10:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:26,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:10:26,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:26,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:10:26,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:10:26,168 INFO L87 Difference]: Start difference. First operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:26,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:26,237 INFO L93 Difference]: Finished difference Result 1784 states and 3386 transitions. [2024-12-02 12:10:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:10:26,239 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-12-02 12:10:26,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:26,253 INFO L225 Difference]: With dead ends: 1784 [2024-12-02 12:10:26,253 INFO L226 Difference]: Without dead ends: 850 [2024-12-02 12:10:26,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:10:26,260 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:26,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:26,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-12-02 12:10:26,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-12-02 12:10:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.892688679245283) internal successors, (1605), 849 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1605 transitions. [2024-12-02 12:10:26,328 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1605 transitions. Word has length 26 [2024-12-02 12:10:26,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:26,329 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1605 transitions. [2024-12-02 12:10:26,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:26,329 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1605 transitions. [2024-12-02 12:10:26,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-02 12:10:26,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:26,330 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:26,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:10:26,331 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:26,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:26,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1448421831, now seen corresponding path program 1 times [2024-12-02 12:10:26,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:26,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913776023] [2024-12-02 12:10:26,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:26,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:26,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:26,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913776023] [2024-12-02 12:10:26,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913776023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:26,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:26,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:10:26,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749946084] [2024-12-02 12:10:26,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:26,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:10:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:26,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:10:26,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:10:26,547 INFO L87 Difference]: Start difference. First operand 850 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:26,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:26,671 INFO L93 Difference]: Finished difference Result 904 states and 1689 transitions. [2024-12-02 12:10:26,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:10:26,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-12-02 12:10:26,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:26,676 INFO L225 Difference]: With dead ends: 904 [2024-12-02 12:10:26,676 INFO L226 Difference]: Without dead ends: 850 [2024-12-02 12:10:26,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:10:26,677 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4764 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:26,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6367 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:26,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-12-02 12:10:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-12-02 12:10:26,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.8455188679245282) internal successors, (1565), 849 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:26,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1565 transitions. [2024-12-02 12:10:26,702 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1565 transitions. Word has length 26 [2024-12-02 12:10:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:26,702 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1565 transitions. [2024-12-02 12:10:26,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:26,702 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1565 transitions. [2024-12-02 12:10:26,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 12:10:26,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:26,704 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:26,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:10:26,704 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:26,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash -295358701, now seen corresponding path program 1 times [2024-12-02 12:10:26,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:26,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054987490] [2024-12-02 12:10:26,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:26,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:26,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:26,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054987490] [2024-12-02 12:10:26,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054987490] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:26,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:26,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:10:26,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509695153] [2024-12-02 12:10:26,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:26,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:10:26,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:26,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:10:26,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:10:26,954 INFO L87 Difference]: Start difference. First operand 850 states and 1565 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:27,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:27,289 INFO L93 Difference]: Finished difference Result 1450 states and 2525 transitions. [2024-12-02 12:10:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 12:10:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-12-02 12:10:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:27,295 INFO L225 Difference]: With dead ends: 1450 [2024-12-02 12:10:27,295 INFO L226 Difference]: Without dead ends: 1400 [2024-12-02 12:10:27,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:10:27,297 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 9855 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9855 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:27,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9855 Valid, 3085 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:27,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-12-02 12:10:27,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 898. [2024-12-02 12:10:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 896 states have (on average 1.8325892857142858) internal successors, (1642), 897 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1642 transitions. [2024-12-02 12:10:27,329 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1642 transitions. Word has length 65 [2024-12-02 12:10:27,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:27,329 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 1642 transitions. [2024-12-02 12:10:27,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1642 transitions. [2024-12-02 12:10:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 12:10:27,331 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:27,331 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:27,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:10:27,331 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:27,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:27,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1787564125, now seen corresponding path program 1 times [2024-12-02 12:10:27,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:27,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699002956] [2024-12-02 12:10:27,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:27,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:27,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:27,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:27,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699002956] [2024-12-02 12:10:27,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699002956] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:27,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:27,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:27,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404512605] [2024-12-02 12:10:27,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:27,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:27,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:27,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:27,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:27,446 INFO L87 Difference]: Start difference. First operand 898 states and 1642 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:27,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:27,487 INFO L93 Difference]: Finished difference Result 1083 states and 1937 transitions. [2024-12-02 12:10:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:27,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-12-02 12:10:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:27,492 INFO L225 Difference]: With dead ends: 1083 [2024-12-02 12:10:27,492 INFO L226 Difference]: Without dead ends: 985 [2024-12-02 12:10:27,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:27,493 INFO L435 NwaCegarLoop]: 1561 mSDtfsCounter, 1492 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:27,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1634 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:27,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-12-02 12:10:27,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 981. [2024-12-02 12:10:27,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 979 states have (on average 1.8100102145045964) internal successors, (1772), 980 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:27,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1772 transitions. [2024-12-02 12:10:27,522 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1772 transitions. Word has length 67 [2024-12-02 12:10:27,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:27,522 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1772 transitions. [2024-12-02 12:10:27,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:27,522 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1772 transitions. [2024-12-02 12:10:27,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 12:10:27,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:27,524 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:27,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:10:27,524 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:27,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:27,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1721070613, now seen corresponding path program 1 times [2024-12-02 12:10:27,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:27,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580835365] [2024-12-02 12:10:27,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:27,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:27,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:27,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580835365] [2024-12-02 12:10:27,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580835365] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:27,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:27,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:10:27,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492911533] [2024-12-02 12:10:27,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:27,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:10:27,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:27,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:10:27,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:10:27,915 INFO L87 Difference]: Start difference. First operand 981 states and 1772 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:28,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:28,161 INFO L93 Difference]: Finished difference Result 1164 states and 2060 transitions. [2024-12-02 12:10:28,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:10:28,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-12-02 12:10:28,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:28,166 INFO L225 Difference]: With dead ends: 1164 [2024-12-02 12:10:28,166 INFO L226 Difference]: Without dead ends: 983 [2024-12-02 12:10:28,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:10:28,168 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 6020 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6020 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:28,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6020 Valid, 1943 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:28,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2024-12-02 12:10:28,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 981. [2024-12-02 12:10:28,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 979 states have (on average 1.8079673135852912) internal successors, (1770), 980 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1770 transitions. [2024-12-02 12:10:28,195 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1770 transitions. Word has length 67 [2024-12-02 12:10:28,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:28,195 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1770 transitions. [2024-12-02 12:10:28,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:28,195 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1770 transitions. [2024-12-02 12:10:28,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 12:10:28,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:28,196 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:28,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:10:28,197 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:28,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:28,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1143587505, now seen corresponding path program 1 times [2024-12-02 12:10:28,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:28,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278471738] [2024-12-02 12:10:28,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:28,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:28,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:28,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278471738] [2024-12-02 12:10:28,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278471738] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:28,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:28,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:10:28,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456296991] [2024-12-02 12:10:28,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:28,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:28,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:28,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:28,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:28,281 INFO L87 Difference]: Start difference. First operand 981 states and 1770 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:31,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:31,478 INFO L93 Difference]: Finished difference Result 2485 states and 4643 transitions. [2024-12-02 12:10:31,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:31,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-12-02 12:10:31,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:31,485 INFO L225 Difference]: With dead ends: 2485 [2024-12-02 12:10:31,485 INFO L226 Difference]: Without dead ends: 1732 [2024-12-02 12:10:31,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:31,487 INFO L435 NwaCegarLoop]: 594 mSDtfsCounter, 860 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:31,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 601 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 12:10:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-12-02 12:10:31,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1732. [2024-12-02 12:10:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.5890173410404624) internal successors, (2749), 1731 states have internal predecessors, (2749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:31,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2749 transitions. [2024-12-02 12:10:31,532 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2749 transitions. Word has length 67 [2024-12-02 12:10:31,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:31,532 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2749 transitions. [2024-12-02 12:10:31,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:31,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2749 transitions. [2024-12-02 12:10:31,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 12:10:31,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:31,533 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:31,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:10:31,534 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:31,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:31,534 INFO L85 PathProgramCache]: Analyzing trace with hash 2066662853, now seen corresponding path program 1 times [2024-12-02 12:10:31,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:31,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866558473] [2024-12-02 12:10:31,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:31,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:31,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:31,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866558473] [2024-12-02 12:10:31,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866558473] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:31,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:31,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:10:31,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737556465] [2024-12-02 12:10:31,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:31,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:10:31,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:31,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:10:31,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:10:31,771 INFO L87 Difference]: Start difference. First operand 1732 states and 2749 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:31,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:31,807 INFO L93 Difference]: Finished difference Result 1740 states and 2758 transitions. [2024-12-02 12:10:31,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:10:31,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-12-02 12:10:31,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:31,813 INFO L225 Difference]: With dead ends: 1740 [2024-12-02 12:10:31,813 INFO L226 Difference]: Without dead ends: 1738 [2024-12-02 12:10:31,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:10:31,815 INFO L435 NwaCegarLoop]: 1562 mSDtfsCounter, 0 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:31,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-12-02 12:10:31,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2024-12-02 12:10:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1736 states have (on average 1.586405529953917) internal successors, (2754), 1737 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2754 transitions. [2024-12-02 12:10:31,858 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2754 transitions. Word has length 68 [2024-12-02 12:10:31,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:31,858 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2754 transitions. [2024-12-02 12:10:31,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2754 transitions. [2024-12-02 12:10:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 12:10:31,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:31,859 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:31,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:10:31,860 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:31,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:31,860 INFO L85 PathProgramCache]: Analyzing trace with hash 279342091, now seen corresponding path program 1 times [2024-12-02 12:10:31,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:31,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771019302] [2024-12-02 12:10:31,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:31,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:31,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:31,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771019302] [2024-12-02 12:10:31,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771019302] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:31,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:31,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:31,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898173896] [2024-12-02 12:10:31,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:31,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:31,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:31,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:31,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:31,928 INFO L87 Difference]: Start difference. First operand 1738 states and 2754 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:31,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:31,959 INFO L93 Difference]: Finished difference Result 2096 states and 3306 transitions. [2024-12-02 12:10:31,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:31,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-02 12:10:31,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:31,965 INFO L225 Difference]: With dead ends: 2096 [2024-12-02 12:10:31,966 INFO L226 Difference]: Without dead ends: 1909 [2024-12-02 12:10:31,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:31,967 INFO L435 NwaCegarLoop]: 1612 mSDtfsCounter, 1505 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:31,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1701 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:31,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2024-12-02 12:10:32,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1907. [2024-12-02 12:10:32,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.5805774278215223) internal successors, (3011), 1906 states have internal predecessors, (3011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3011 transitions. [2024-12-02 12:10:32,015 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3011 transitions. Word has length 69 [2024-12-02 12:10:32,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:32,015 INFO L471 AbstractCegarLoop]: Abstraction has 1907 states and 3011 transitions. [2024-12-02 12:10:32,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3011 transitions. [2024-12-02 12:10:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 12:10:32,016 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:32,016 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:32,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:10:32,017 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:32,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:32,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1517604107, now seen corresponding path program 1 times [2024-12-02 12:10:32,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:32,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767976711] [2024-12-02 12:10:32,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:32,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:32,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:32,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767976711] [2024-12-02 12:10:32,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767976711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:32,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:32,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:32,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832561986] [2024-12-02 12:10:32,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:32,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:32,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:32,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:32,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:32,080 INFO L87 Difference]: Start difference. First operand 1907 states and 3011 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:32,111 INFO L93 Difference]: Finished difference Result 2587 states and 4049 transitions. [2024-12-02 12:10:32,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:32,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-02 12:10:32,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:32,118 INFO L225 Difference]: With dead ends: 2587 [2024-12-02 12:10:32,118 INFO L226 Difference]: Without dead ends: 2231 [2024-12-02 12:10:32,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:32,119 INFO L435 NwaCegarLoop]: 1610 mSDtfsCounter, 1503 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:32,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1703 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:32,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-12-02 12:10:32,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2229. [2024-12-02 12:10:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 2227 states have (on average 1.5684777727885046) internal successors, (3493), 2228 states have internal predecessors, (3493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3493 transitions. [2024-12-02 12:10:32,173 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3493 transitions. Word has length 69 [2024-12-02 12:10:32,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:32,173 INFO L471 AbstractCegarLoop]: Abstraction has 2229 states and 3493 transitions. [2024-12-02 12:10:32,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3493 transitions. [2024-12-02 12:10:32,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 12:10:32,174 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:32,174 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:32,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:10:32,174 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:32,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:32,174 INFO L85 PathProgramCache]: Analyzing trace with hash -697864693, now seen corresponding path program 1 times [2024-12-02 12:10:32,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:32,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003864407] [2024-12-02 12:10:32,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:32,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:32,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:32,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:32,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003864407] [2024-12-02 12:10:32,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003864407] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:32,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:32,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:32,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123162580] [2024-12-02 12:10:32,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:32,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:32,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:32,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:32,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:32,236 INFO L87 Difference]: Start difference. First operand 2229 states and 3493 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:32,270 INFO L93 Difference]: Finished difference Result 3521 states and 5439 transitions. [2024-12-02 12:10:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:32,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-02 12:10:32,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:32,279 INFO L225 Difference]: With dead ends: 3521 [2024-12-02 12:10:32,279 INFO L226 Difference]: Without dead ends: 2843 [2024-12-02 12:10:32,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:32,281 INFO L435 NwaCegarLoop]: 1608 mSDtfsCounter, 1501 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:32,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1705 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-12-02 12:10:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2841. [2024-12-02 12:10:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 1.5473758365621697) internal successors, (4393), 2840 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4393 transitions. [2024-12-02 12:10:32,373 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4393 transitions. Word has length 69 [2024-12-02 12:10:32,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:32,374 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 4393 transitions. [2024-12-02 12:10:32,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4393 transitions. [2024-12-02 12:10:32,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 12:10:32,375 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:32,375 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:32,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:10:32,375 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:32,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:32,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1083068171, now seen corresponding path program 1 times [2024-12-02 12:10:32,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:32,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986138784] [2024-12-02 12:10:32,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:32,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:32,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:32,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986138784] [2024-12-02 12:10:32,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986138784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:32,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:32,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:32,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419090787] [2024-12-02 12:10:32,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:32,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:32,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:32,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:32,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:32,438 INFO L87 Difference]: Start difference. First operand 2841 states and 4393 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:32,493 INFO L93 Difference]: Finished difference Result 5293 states and 8027 transitions. [2024-12-02 12:10:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:32,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-02 12:10:32,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:32,504 INFO L225 Difference]: With dead ends: 5293 [2024-12-02 12:10:32,504 INFO L226 Difference]: Without dead ends: 4003 [2024-12-02 12:10:32,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:32,507 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 1499 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:32,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:32,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states. [2024-12-02 12:10:32,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 4001. [2024-12-02 12:10:32,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3999 states have (on average 1.5166291572893222) internal successors, (6065), 4000 states have internal predecessors, (6065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 6065 transitions. [2024-12-02 12:10:32,602 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 6065 transitions. Word has length 69 [2024-12-02 12:10:32,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:32,602 INFO L471 AbstractCegarLoop]: Abstraction has 4001 states and 6065 transitions. [2024-12-02 12:10:32,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,603 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 6065 transitions. [2024-12-02 12:10:32,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 12:10:32,603 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:32,603 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:32,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:10:32,604 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:32,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:32,604 INFO L85 PathProgramCache]: Analyzing trace with hash 15485707, now seen corresponding path program 1 times [2024-12-02 12:10:32,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:32,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046524717] [2024-12-02 12:10:32,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:32,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:32,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:32,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046524717] [2024-12-02 12:10:32,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046524717] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:32,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:32,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:32,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934903496] [2024-12-02 12:10:32,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:32,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:32,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:32,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:32,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:32,667 INFO L87 Difference]: Start difference. First operand 4001 states and 6065 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:32,747 INFO L93 Difference]: Finished difference Result 8645 states and 12819 transitions. [2024-12-02 12:10:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:32,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-02 12:10:32,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:32,765 INFO L225 Difference]: With dead ends: 8645 [2024-12-02 12:10:32,765 INFO L226 Difference]: Without dead ends: 6195 [2024-12-02 12:10:32,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:32,769 INFO L435 NwaCegarLoop]: 1622 mSDtfsCounter, 1507 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:32,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:32,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6195 states. [2024-12-02 12:10:32,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6195 to 6193. [2024-12-02 12:10:32,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6191 states have (on average 1.478436439993539) internal successors, (9153), 6192 states have internal predecessors, (9153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 9153 transitions. [2024-12-02 12:10:32,906 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 9153 transitions. Word has length 69 [2024-12-02 12:10:32,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:32,907 INFO L471 AbstractCegarLoop]: Abstraction has 6193 states and 9153 transitions. [2024-12-02 12:10:32,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:32,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 9153 transitions. [2024-12-02 12:10:32,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 12:10:32,908 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:32,908 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:32,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:10:32,908 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:32,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:32,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2036636858, now seen corresponding path program 1 times [2024-12-02 12:10:32,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:32,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560880533] [2024-12-02 12:10:32,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:32,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:32,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:32,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:32,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560880533] [2024-12-02 12:10:32,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560880533] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:32,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:32,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:32,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102483720] [2024-12-02 12:10:32,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:32,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:32,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:32,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:32,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:32,971 INFO L87 Difference]: Start difference. First operand 6193 states and 9153 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:33,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:33,068 INFO L93 Difference]: Finished difference Result 11064 states and 16263 transitions. [2024-12-02 12:10:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:33,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-12-02 12:10:33,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:33,087 INFO L225 Difference]: With dead ends: 11064 [2024-12-02 12:10:33,087 INFO L226 Difference]: Without dead ends: 8437 [2024-12-02 12:10:33,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:33,092 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 1506 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:33,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:33,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2024-12-02 12:10:33,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 8435. [2024-12-02 12:10:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8435 states, 8433 states have (on average 1.4612830546661923) internal successors, (12323), 8434 states have internal predecessors, (12323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:33,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8435 states to 8435 states and 12323 transitions. [2024-12-02 12:10:33,258 INFO L78 Accepts]: Start accepts. Automaton has 8435 states and 12323 transitions. Word has length 71 [2024-12-02 12:10:33,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:33,258 INFO L471 AbstractCegarLoop]: Abstraction has 8435 states and 12323 transitions. [2024-12-02 12:10:33,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:33,258 INFO L276 IsEmpty]: Start isEmpty. Operand 8435 states and 12323 transitions. [2024-12-02 12:10:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:10:33,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:33,261 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:33,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:10:33,261 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:33,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1790597010, now seen corresponding path program 1 times [2024-12-02 12:10:33,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:33,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552232202] [2024-12-02 12:10:33,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:33,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 12:10:33,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:33,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552232202] [2024-12-02 12:10:33,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552232202] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:33,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:33,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:10:33,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716340906] [2024-12-02 12:10:33,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:33,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:10:33,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:33,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:10:33,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:10:33,462 INFO L87 Difference]: Start difference. First operand 8435 states and 12323 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:33,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:33,992 INFO L93 Difference]: Finished difference Result 51169 states and 73450 transitions. [2024-12-02 12:10:33,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:10:33,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 12:10:33,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:34,063 INFO L225 Difference]: With dead ends: 51169 [2024-12-02 12:10:34,063 INFO L226 Difference]: Without dead ends: 44287 [2024-12-02 12:10:34,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:10:34,075 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 8109 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8109 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:34,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8109 Valid, 3868 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:34,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44287 states. [2024-12-02 12:10:34,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44287 to 15315. [2024-12-02 12:10:34,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15315 states, 15313 states have (on average 1.442108012799582) internal successors, (22083), 15314 states have internal predecessors, (22083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:34,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15315 states to 15315 states and 22083 transitions. [2024-12-02 12:10:34,464 INFO L78 Accepts]: Start accepts. Automaton has 15315 states and 22083 transitions. Word has length 90 [2024-12-02 12:10:34,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:34,464 INFO L471 AbstractCegarLoop]: Abstraction has 15315 states and 22083 transitions. [2024-12-02 12:10:34,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 15315 states and 22083 transitions. [2024-12-02 12:10:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:10:34,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:34,467 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:34,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:10:34,467 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:34,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:34,467 INFO L85 PathProgramCache]: Analyzing trace with hash -552334994, now seen corresponding path program 1 times [2024-12-02 12:10:34,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:34,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765804194] [2024-12-02 12:10:34,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:34,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:34,600 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 12:10:34,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:34,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765804194] [2024-12-02 12:10:34,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765804194] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:34,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:34,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:10:34,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038365151] [2024-12-02 12:10:34,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:34,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:10:34,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:34,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:10:34,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:10:34,601 INFO L87 Difference]: Start difference. First operand 15315 states and 22083 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:35,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:35,310 INFO L93 Difference]: Finished difference Result 58049 states and 83210 transitions. [2024-12-02 12:10:35,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:10:35,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 12:10:35,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:35,376 INFO L225 Difference]: With dead ends: 58049 [2024-12-02 12:10:35,376 INFO L226 Difference]: Without dead ends: 51167 [2024-12-02 12:10:35,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:10:35,388 INFO L435 NwaCegarLoop]: 1639 mSDtfsCounter, 8154 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8154 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:35,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8154 Valid, 3817 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:35,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51167 states. [2024-12-02 12:10:36,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51167 to 25651. [2024-12-02 12:10:36,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25651 states, 25649 states have (on average 1.428632695231783) internal successors, (36643), 25650 states have internal predecessors, (36643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25651 states to 25651 states and 36643 transitions. [2024-12-02 12:10:36,175 INFO L78 Accepts]: Start accepts. Automaton has 25651 states and 36643 transitions. Word has length 90 [2024-12-02 12:10:36,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:36,176 INFO L471 AbstractCegarLoop]: Abstraction has 25651 states and 36643 transitions. [2024-12-02 12:10:36,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:36,176 INFO L276 IsEmpty]: Start isEmpty. Operand 25651 states and 36643 transitions. [2024-12-02 12:10:36,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:10:36,180 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:36,180 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:36,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:10:36,181 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:36,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:36,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1527163502, now seen corresponding path program 1 times [2024-12-02 12:10:36,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:36,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187225660] [2024-12-02 12:10:36,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:36,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 12:10:36,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:36,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187225660] [2024-12-02 12:10:36,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187225660] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:36,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:36,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:10:36,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585888888] [2024-12-02 12:10:36,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:36,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:10:36,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:36,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:10:36,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:10:36,428 INFO L87 Difference]: Start difference. First operand 25651 states and 36643 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:37,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:37,507 INFO L93 Difference]: Finished difference Result 64929 states and 92970 transitions. [2024-12-02 12:10:37,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:10:37,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 12:10:37,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:37,557 INFO L225 Difference]: With dead ends: 64929 [2024-12-02 12:10:37,557 INFO L226 Difference]: Without dead ends: 58047 [2024-12-02 12:10:37,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:10:37,568 INFO L435 NwaCegarLoop]: 1636 mSDtfsCounter, 8204 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8204 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:37,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8204 Valid, 3818 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:37,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58047 states. [2024-12-02 12:10:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58047 to 32531. [2024-12-02 12:10:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32531 states, 32529 states have (on average 1.426511727996557) internal successors, (46403), 32530 states have internal predecessors, (46403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:38,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32531 states to 32531 states and 46403 transitions. [2024-12-02 12:10:38,283 INFO L78 Accepts]: Start accepts. Automaton has 32531 states and 46403 transitions. Word has length 90 [2024-12-02 12:10:38,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:38,283 INFO L471 AbstractCegarLoop]: Abstraction has 32531 states and 46403 transitions. [2024-12-02 12:10:38,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:38,283 INFO L276 IsEmpty]: Start isEmpty. Operand 32531 states and 46403 transitions. [2024-12-02 12:10:38,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:10:38,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:38,285 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:38,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:10:38,286 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:38,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash -986870930, now seen corresponding path program 1 times [2024-12-02 12:10:38,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912428594] [2024-12-02 12:10:38,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:38,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 12:10:38,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:38,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912428594] [2024-12-02 12:10:38,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912428594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:38,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:38,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:10:38,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956965418] [2024-12-02 12:10:38,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:38,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:10:38,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:38,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:10:38,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:10:38,413 INFO L87 Difference]: Start difference. First operand 32531 states and 46403 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:39,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:39,490 INFO L93 Difference]: Finished difference Result 71809 states and 102730 transitions. [2024-12-02 12:10:39,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:10:39,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 12:10:39,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:39,539 INFO L225 Difference]: With dead ends: 71809 [2024-12-02 12:10:39,540 INFO L226 Difference]: Without dead ends: 64927 [2024-12-02 12:10:39,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:10:39,551 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 8108 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8108 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:39,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8108 Valid, 3911 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:39,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64927 states. [2024-12-02 12:10:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64927 to 39411. [2024-12-02 12:10:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39411 states, 39409 states have (on average 1.4251313151818112) internal successors, (56163), 39410 states have internal predecessors, (56163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:40,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39411 states to 39411 states and 56163 transitions. [2024-12-02 12:10:40,404 INFO L78 Accepts]: Start accepts. Automaton has 39411 states and 56163 transitions. Word has length 90 [2024-12-02 12:10:40,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:40,404 INFO L471 AbstractCegarLoop]: Abstraction has 39411 states and 56163 transitions. [2024-12-02 12:10:40,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:40,404 INFO L276 IsEmpty]: Start isEmpty. Operand 39411 states and 56163 transitions. [2024-12-02 12:10:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 12:10:40,407 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:40,407 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:40,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:10:40,408 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:40,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:40,408 INFO L85 PathProgramCache]: Analyzing trace with hash -2054453394, now seen corresponding path program 1 times [2024-12-02 12:10:40,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:40,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499776951] [2024-12-02 12:10:40,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:40,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 12:10:40,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:40,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499776951] [2024-12-02 12:10:40,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499776951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:40,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:40,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:10:40,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130929685] [2024-12-02 12:10:40,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:40,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:10:40,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:40,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:10:40,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:10:40,579 INFO L87 Difference]: Start difference. First operand 39411 states and 56163 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:42,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:42,170 INFO L93 Difference]: Finished difference Result 78689 states and 112490 transitions. [2024-12-02 12:10:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:10:42,171 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 12:10:42,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:42,351 INFO L225 Difference]: With dead ends: 78689 [2024-12-02 12:10:42,351 INFO L226 Difference]: Without dead ends: 71807 [2024-12-02 12:10:42,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:10:42,362 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 8044 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8044 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:42,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8044 Valid, 4067 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:42,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71807 states. [2024-12-02 12:10:43,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71807 to 46291. [2024-12-02 12:10:43,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46291 states, 46289 states have (on average 1.4241612478126553) internal successors, (65923), 46290 states have internal predecessors, (65923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:43,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46291 states to 46291 states and 65923 transitions. [2024-12-02 12:10:43,256 INFO L78 Accepts]: Start accepts. Automaton has 46291 states and 65923 transitions. Word has length 90 [2024-12-02 12:10:43,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:43,256 INFO L471 AbstractCegarLoop]: Abstraction has 46291 states and 65923 transitions. [2024-12-02 12:10:43,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:43,256 INFO L276 IsEmpty]: Start isEmpty. Operand 46291 states and 65923 transitions. [2024-12-02 12:10:43,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 12:10:43,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:43,260 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:43,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:10:43,260 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:43,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:43,261 INFO L85 PathProgramCache]: Analyzing trace with hash 168958598, now seen corresponding path program 1 times [2024-12-02 12:10:43,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:43,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334527741] [2024-12-02 12:10:43,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:43,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:43,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:43,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334527741] [2024-12-02 12:10:43,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334527741] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:43,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823924177] [2024-12-02 12:10:43,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:43,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:43,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:43,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:43,362 INFO L87 Difference]: Start difference. First operand 46291 states and 65923 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:44,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:44,012 INFO L93 Difference]: Finished difference Result 77933 states and 111292 transitions. [2024-12-02 12:10:44,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:44,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-12-02 12:10:44,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:44,040 INFO L225 Difference]: With dead ends: 77933 [2024-12-02 12:10:44,040 INFO L226 Difference]: Without dead ends: 33195 [2024-12-02 12:10:44,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:44,060 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 58 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:44,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33195 states. [2024-12-02 12:10:44,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33195 to 33193. [2024-12-02 12:10:44,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33193 states, 33191 states have (on average 1.4286101654062848) internal successors, (47417), 33192 states have internal predecessors, (47417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33193 states to 33193 states and 47417 transitions. [2024-12-02 12:10:44,617 INFO L78 Accepts]: Start accepts. Automaton has 33193 states and 47417 transitions. Word has length 92 [2024-12-02 12:10:44,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:44,617 INFO L471 AbstractCegarLoop]: Abstraction has 33193 states and 47417 transitions. [2024-12-02 12:10:44,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:44,617 INFO L276 IsEmpty]: Start isEmpty. Operand 33193 states and 47417 transitions. [2024-12-02 12:10:44,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 12:10:44,618 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:44,619 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:44,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 12:10:44,619 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:44,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:44,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1616712425, now seen corresponding path program 1 times [2024-12-02 12:10:44,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:44,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671218318] [2024-12-02 12:10:44,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:44,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 12:10:44,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:44,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671218318] [2024-12-02 12:10:44,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671218318] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:44,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:44,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:10:44,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326979731] [2024-12-02 12:10:44,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:44,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:10:44,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:44,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:10:44,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:10:44,773 INFO L87 Difference]: Start difference. First operand 33193 states and 47417 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:45,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:45,703 INFO L93 Difference]: Finished difference Result 62391 states and 89280 transitions. [2024-12-02 12:10:45,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:10:45,704 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-12-02 12:10:45,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:45,747 INFO L225 Difference]: With dead ends: 62391 [2024-12-02 12:10:45,747 INFO L226 Difference]: Without dead ends: 57525 [2024-12-02 12:10:45,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:10:45,758 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 8058 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8058 SdHoareTripleChecker+Valid, 3984 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:45,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8058 Valid, 3984 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:10:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57525 states. [2024-12-02 12:10:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57525 to 38057. [2024-12-02 12:10:46,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38057 states, 38055 states have (on average 1.4276441991853897) internal successors, (54329), 38056 states have internal predecessors, (54329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:46,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38057 states to 38057 states and 54329 transitions. [2024-12-02 12:10:46,535 INFO L78 Accepts]: Start accepts. Automaton has 38057 states and 54329 transitions. Word has length 92 [2024-12-02 12:10:46,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:46,535 INFO L471 AbstractCegarLoop]: Abstraction has 38057 states and 54329 transitions. [2024-12-02 12:10:46,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:46,536 INFO L276 IsEmpty]: Start isEmpty. Operand 38057 states and 54329 transitions. [2024-12-02 12:10:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 12:10:46,537 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:46,537 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:46,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:10:46,537 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:46,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1117757048, now seen corresponding path program 1 times [2024-12-02 12:10:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:46,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88877298] [2024-12-02 12:10:46,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:46,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:46,596 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:46,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:46,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88877298] [2024-12-02 12:10:46,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88877298] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:46,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:46,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:46,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686774484] [2024-12-02 12:10:46,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:46,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:46,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:46,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:46,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:46,597 INFO L87 Difference]: Start difference. First operand 38057 states and 54329 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:46,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:46,906 INFO L93 Difference]: Finished difference Result 56301 states and 80251 transitions. [2024-12-02 12:10:46,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:46,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 12:10:46,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:46,925 INFO L225 Difference]: With dead ends: 56301 [2024-12-02 12:10:46,925 INFO L226 Difference]: Without dead ends: 19819 [2024-12-02 12:10:47,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:47,011 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:47,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:47,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19819 states. [2024-12-02 12:10:47,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19819 to 19817. [2024-12-02 12:10:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19817 states, 19815 states have (on average 1.4215997981327277) internal successors, (28169), 19816 states have internal predecessors, (28169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:47,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19817 states to 19817 states and 28169 transitions. [2024-12-02 12:10:47,569 INFO L78 Accepts]: Start accepts. Automaton has 19817 states and 28169 transitions. Word has length 93 [2024-12-02 12:10:47,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:47,570 INFO L471 AbstractCegarLoop]: Abstraction has 19817 states and 28169 transitions. [2024-12-02 12:10:47,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:47,570 INFO L276 IsEmpty]: Start isEmpty. Operand 19817 states and 28169 transitions. [2024-12-02 12:10:47,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 12:10:47,572 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:47,572 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:47,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 12:10:47,572 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:47,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:47,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1320571018, now seen corresponding path program 1 times [2024-12-02 12:10:47,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:47,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819661389] [2024-12-02 12:10:47,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:47,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:47,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:47,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819661389] [2024-12-02 12:10:47,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819661389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:47,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:47,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:47,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280779771] [2024-12-02 12:10:47,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:47,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:47,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:47,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:47,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:47,663 INFO L87 Difference]: Start difference. First operand 19817 states and 28169 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:47,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:47,935 INFO L93 Difference]: Finished difference Result 28941 states and 41011 transitions. [2024-12-02 12:10:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:47,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 12:10:47,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:47,946 INFO L225 Difference]: With dead ends: 28941 [2024-12-02 12:10:47,946 INFO L226 Difference]: Without dead ends: 10699 [2024-12-02 12:10:47,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:47,956 INFO L435 NwaCegarLoop]: 1599 mSDtfsCounter, 50 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:47,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:47,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10699 states. [2024-12-02 12:10:48,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10699 to 10697. [2024-12-02 12:10:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10697 states, 10695 states have (on average 1.4220663861617577) internal successors, (15209), 10696 states have internal predecessors, (15209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10697 states to 10697 states and 15209 transitions. [2024-12-02 12:10:48,256 INFO L78 Accepts]: Start accepts. Automaton has 10697 states and 15209 transitions. Word has length 95 [2024-12-02 12:10:48,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:48,257 INFO L471 AbstractCegarLoop]: Abstraction has 10697 states and 15209 transitions. [2024-12-02 12:10:48,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 10697 states and 15209 transitions. [2024-12-02 12:10:48,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 12:10:48,258 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:48,258 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:48,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 12:10:48,258 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:48,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:48,259 INFO L85 PathProgramCache]: Analyzing trace with hash -969080548, now seen corresponding path program 1 times [2024-12-02 12:10:48,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:48,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780144532] [2024-12-02 12:10:48,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:48,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:48,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:48,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780144532] [2024-12-02 12:10:48,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780144532] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:48,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:48,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:48,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439898615] [2024-12-02 12:10:48,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:48,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:48,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:48,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:48,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:48,348 INFO L87 Difference]: Start difference. First operand 10697 states and 15209 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:48,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:48,493 INFO L93 Difference]: Finished difference Result 15261 states and 21571 transitions. [2024-12-02 12:10:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:48,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-12-02 12:10:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:48,501 INFO L225 Difference]: With dead ends: 15261 [2024-12-02 12:10:48,501 INFO L226 Difference]: Without dead ends: 6139 [2024-12-02 12:10:48,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:48,506 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 47 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:48,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:48,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2024-12-02 12:10:48,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6137. [2024-12-02 12:10:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6137 states, 6135 states have (on average 1.432599837000815) internal successors, (8789), 6136 states have internal predecessors, (8789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 8789 transitions. [2024-12-02 12:10:48,666 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 8789 transitions. Word has length 97 [2024-12-02 12:10:48,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:48,666 INFO L471 AbstractCegarLoop]: Abstraction has 6137 states and 8789 transitions. [2024-12-02 12:10:48,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:48,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 8789 transitions. [2024-12-02 12:10:48,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:10:48,667 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:48,667 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:48,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 12:10:48,667 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:48,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:48,668 INFO L85 PathProgramCache]: Analyzing trace with hash -83832786, now seen corresponding path program 1 times [2024-12-02 12:10:48,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:48,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042363798] [2024-12-02 12:10:48,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:48,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:48,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:48,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042363798] [2024-12-02 12:10:48,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042363798] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:48,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:48,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:48,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149937855] [2024-12-02 12:10:48,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:48,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:48,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:48,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:48,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:48,760 INFO L87 Difference]: Start difference. First operand 6137 states and 8789 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:48,846 INFO L93 Difference]: Finished difference Result 8421 states and 11941 transitions. [2024-12-02 12:10:48,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:48,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-12-02 12:10:48,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:48,851 INFO L225 Difference]: With dead ends: 8421 [2024-12-02 12:10:48,852 INFO L226 Difference]: Without dead ends: 3859 [2024-12-02 12:10:48,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:48,854 INFO L435 NwaCegarLoop]: 1585 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:48,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2024-12-02 12:10:48,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3857. [2024-12-02 12:10:48,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3857 states, 3855 states have (on average 1.4549935149156938) internal successors, (5609), 3856 states have internal predecessors, (5609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:48,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 5609 transitions. [2024-12-02 12:10:48,949 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 5609 transitions. Word has length 99 [2024-12-02 12:10:48,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:48,950 INFO L471 AbstractCegarLoop]: Abstraction has 3857 states and 5609 transitions. [2024-12-02 12:10:48,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 5609 transitions. [2024-12-02 12:10:48,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 12:10:48,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:48,951 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:48,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 12:10:48,951 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:48,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:48,951 INFO L85 PathProgramCache]: Analyzing trace with hash -709435968, now seen corresponding path program 1 times [2024-12-02 12:10:48,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:48,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37652261] [2024-12-02 12:10:48,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:48,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:49,085 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:49,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:49,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37652261] [2024-12-02 12:10:49,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37652261] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:10:49,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:10:49,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:10:49,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711136299] [2024-12-02 12:10:49,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:10:49,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:10:49,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:49,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:10:49,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:49,086 INFO L87 Difference]: Start difference. First operand 3857 states and 5609 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:49,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:49,142 INFO L93 Difference]: Finished difference Result 5001 states and 7171 transitions. [2024-12-02 12:10:49,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:10:49,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 12:10:49,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:49,146 INFO L225 Difference]: With dead ends: 5001 [2024-12-02 12:10:49,146 INFO L226 Difference]: Without dead ends: 2719 [2024-12-02 12:10:49,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:10:49,147 INFO L435 NwaCegarLoop]: 1578 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:49,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:10:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2024-12-02 12:10:49,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2717. [2024-12-02 12:10:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2715 states have (on average 1.4858195211786371) internal successors, (4034), 2716 states have internal predecessors, (4034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:49,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 4034 transitions. [2024-12-02 12:10:49,183 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 4034 transitions. Word has length 101 [2024-12-02 12:10:49,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:49,184 INFO L471 AbstractCegarLoop]: Abstraction has 2717 states and 4034 transitions. [2024-12-02 12:10:49,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:49,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 4034 transitions. [2024-12-02 12:10:49,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 12:10:49,184 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:49,185 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:49,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 12:10:49,185 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:49,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:49,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1744587218, now seen corresponding path program 1 times [2024-12-02 12:10:49,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:49,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45061149] [2024-12-02 12:10:49,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:49,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:49,910 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:49,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:49,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45061149] [2024-12-02 12:10:49,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45061149] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:10:49,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562238668] [2024-12-02 12:10:49,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:49,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:49,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:49,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:49,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:10:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:50,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 12:10:50,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:50,585 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:50,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:51,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562238668] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:10:51,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:10:51,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 6] total 22 [2024-12-02 12:10:51,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853988117] [2024-12-02 12:10:51,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:51,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 12:10:51,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:51,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 12:10:51,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:10:51,106 INFO L87 Difference]: Start difference. First operand 2717 states and 4034 transitions. Second operand has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:55,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:10:55,398 INFO L93 Difference]: Finished difference Result 13443 states and 18416 transitions. [2024-12-02 12:10:55,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-12-02 12:10:55,399 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-12-02 12:10:55,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:10:55,407 INFO L225 Difference]: With dead ends: 13443 [2024-12-02 12:10:55,407 INFO L226 Difference]: Without dead ends: 12203 [2024-12-02 12:10:55,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2880 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1313, Invalid=7243, Unknown=0, NotChecked=0, Total=8556 [2024-12-02 12:10:55,413 INFO L435 NwaCegarLoop]: 1546 mSDtfsCounter, 17192 mSDsluCounter, 9685 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17192 SdHoareTripleChecker+Valid, 11231 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:10:55,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17192 Valid, 11231 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 12:10:55,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12203 states. [2024-12-02 12:10:55,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12203 to 11473. [2024-12-02 12:10:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11473 states, 11471 states have (on average 1.3604742393862785) internal successors, (15606), 11472 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:55,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11473 states to 11473 states and 15606 transitions. [2024-12-02 12:10:55,690 INFO L78 Accepts]: Start accepts. Automaton has 11473 states and 15606 transitions. Word has length 103 [2024-12-02 12:10:55,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:10:55,690 INFO L471 AbstractCegarLoop]: Abstraction has 11473 states and 15606 transitions. [2024-12-02 12:10:55,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:10:55,690 INFO L276 IsEmpty]: Start isEmpty. Operand 11473 states and 15606 transitions. [2024-12-02 12:10:55,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:10:55,691 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:10:55,691 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:10:55,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:10:55,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 12:10:55,892 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:10:55,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:10:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash -520471001, now seen corresponding path program 1 times [2024-12-02 12:10:55,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:10:55,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113462291] [2024-12-02 12:10:55,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:55,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:10:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:56,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:10:56,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113462291] [2024-12-02 12:10:56,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113462291] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:10:56,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536611833] [2024-12-02 12:10:56,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:10:56,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:10:56,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:10:56,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:10:56,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:10:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:10:57,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:10:57,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:10:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:57,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:58,614 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:10:58,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536611833] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:10:58,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:10:58,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 12:10:58,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352538985] [2024-12-02 12:10:58,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:10:58,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 12:10:58,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:10:58,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 12:10:58,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2024-12-02 12:10:58,615 INFO L87 Difference]: Start difference. First operand 11473 states and 15606 transitions. Second operand has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:01,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:11:01,032 INFO L93 Difference]: Finished difference Result 48667 states and 64714 transitions. [2024-12-02 12:11:01,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 12:11:01,032 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-12-02 12:11:01,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:11:01,059 INFO L225 Difference]: With dead ends: 48667 [2024-12-02 12:11:01,059 INFO L226 Difference]: Without dead ends: 38913 [2024-12-02 12:11:01,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2024-12-02 12:11:01,067 INFO L435 NwaCegarLoop]: 1524 mSDtfsCounter, 23257 mSDsluCounter, 5161 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23257 SdHoareTripleChecker+Valid, 6685 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:11:01,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23257 Valid, 6685 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:11:01,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38913 states. [2024-12-02 12:11:02,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38913 to 38693. [2024-12-02 12:11:02,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38693 states, 38691 states have (on average 1.3234343904267143) internal successors, (51205), 38692 states have internal predecessors, (51205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38693 states to 38693 states and 51205 transitions. [2024-12-02 12:11:02,237 INFO L78 Accepts]: Start accepts. Automaton has 38693 states and 51205 transitions. Word has length 104 [2024-12-02 12:11:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:11:02,237 INFO L471 AbstractCegarLoop]: Abstraction has 38693 states and 51205 transitions. [2024-12-02 12:11:02,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 38693 states and 51205 transitions. [2024-12-02 12:11:02,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:11:02,238 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:11:02,239 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:11:02,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:11:02,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 12:11:02,443 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:11:02,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:11:02,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1922015015, now seen corresponding path program 1 times [2024-12-02 12:11:02,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:11:02,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213935843] [2024-12-02 12:11:02,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:02,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:11:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:03,070 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:03,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:11:03,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213935843] [2024-12-02 12:11:03,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213935843] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:11:03,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739239698] [2024-12-02 12:11:03,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:03,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:03,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:11:03,072 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:11:03,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:11:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:03,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:11:03,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:11:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:03,638 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:11:04,655 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:04,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739239698] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:11:04,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:11:04,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 26 [2024-12-02 12:11:04,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021244961] [2024-12-02 12:11:04,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:11:04,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 12:11:04,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:11:04,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 12:11:04,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-12-02 12:11:04,658 INFO L87 Difference]: Start difference. First operand 38693 states and 51205 transitions. Second operand has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:11:06,663 INFO L93 Difference]: Finished difference Result 74825 states and 98746 transitions. [2024-12-02 12:11:06,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:11:06,664 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-12-02 12:11:06,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:11:06,692 INFO L225 Difference]: With dead ends: 74825 [2024-12-02 12:11:06,693 INFO L226 Difference]: Without dead ends: 39921 [2024-12-02 12:11:06,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 12:11:06,706 INFO L435 NwaCegarLoop]: 1526 mSDtfsCounter, 17171 mSDsluCounter, 6358 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17171 SdHoareTripleChecker+Valid, 7884 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:11:06,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17171 Valid, 7884 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:11:06,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39921 states. [2024-12-02 12:11:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39921 to 37449. [2024-12-02 12:11:07,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37449 states, 37447 states have (on average 1.310038187304724) internal successors, (49057), 37448 states have internal predecessors, (49057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:07,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37449 states to 37449 states and 49057 transitions. [2024-12-02 12:11:07,950 INFO L78 Accepts]: Start accepts. Automaton has 37449 states and 49057 transitions. Word has length 104 [2024-12-02 12:11:07,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:11:07,951 INFO L471 AbstractCegarLoop]: Abstraction has 37449 states and 49057 transitions. [2024-12-02 12:11:07,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:07,951 INFO L276 IsEmpty]: Start isEmpty. Operand 37449 states and 49057 transitions. [2024-12-02 12:11:07,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:11:07,952 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:11:07,952 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:11:07,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:11:08,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 12:11:08,152 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:11:08,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:11:08,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1393813607, now seen corresponding path program 1 times [2024-12-02 12:11:08,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:11:08,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745418730] [2024-12-02 12:11:08,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:08,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:11:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:08,885 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:08,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:11:08,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745418730] [2024-12-02 12:11:08,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745418730] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:11:08,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451289498] [2024-12-02 12:11:08,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:08,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:08,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:11:08,888 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:11:08,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:11:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:09,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 12:11:09,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:11:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:09,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:11:10,496 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:10,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451289498] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:11:10,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:11:10,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 12:11:10,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787169156] [2024-12-02 12:11:10,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:11:10,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 12:11:10,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:11:10,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 12:11:10,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-12-02 12:11:10,497 INFO L87 Difference]: Start difference. First operand 37449 states and 49057 transitions. Second operand has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:15,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:11:15,303 INFO L93 Difference]: Finished difference Result 113265 states and 147841 transitions. [2024-12-02 12:11:15,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-02 12:11:15,303 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-12-02 12:11:15,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:11:15,357 INFO L225 Difference]: With dead ends: 113265 [2024-12-02 12:11:15,357 INFO L226 Difference]: Without dead ends: 77517 [2024-12-02 12:11:15,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=697, Invalid=2963, Unknown=0, NotChecked=0, Total=3660 [2024-12-02 12:11:15,376 INFO L435 NwaCegarLoop]: 1514 mSDtfsCounter, 23831 mSDsluCounter, 5308 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23831 SdHoareTripleChecker+Valid, 6822 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:11:15,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23831 Valid, 6822 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:11:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77517 states. [2024-12-02 12:11:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77517 to 71345. [2024-12-02 12:11:17,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71345 states, 71343 states have (on average 1.28232622681973) internal successors, (91485), 71344 states have internal predecessors, (91485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71345 states to 71345 states and 91485 transitions. [2024-12-02 12:11:17,687 INFO L78 Accepts]: Start accepts. Automaton has 71345 states and 91485 transitions. Word has length 104 [2024-12-02 12:11:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:11:17,687 INFO L471 AbstractCegarLoop]: Abstraction has 71345 states and 91485 transitions. [2024-12-02 12:11:17,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 71345 states and 91485 transitions. [2024-12-02 12:11:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 12:11:17,689 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:11:17,689 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:11:17,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 12:11:17,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 12:11:17,890 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:11:17,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:11:17,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1918155225, now seen corresponding path program 1 times [2024-12-02 12:11:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:11:17,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757737289] [2024-12-02 12:11:17,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:11:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:18,212 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:18,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:11:18,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757737289] [2024-12-02 12:11:18,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757737289] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:11:18,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701115852] [2024-12-02 12:11:18,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:18,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:18,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:11:18,214 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:11:18,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:11:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:18,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:11:18,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:11:18,728 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:18,728 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:11:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:19,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701115852] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:11:19,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:11:19,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 12:11:19,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195654252] [2024-12-02 12:11:19,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:11:19,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 12:11:19,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:11:19,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 12:11:19,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:11:19,442 INFO L87 Difference]: Start difference. First operand 71345 states and 91485 transitions. Second operand has 21 states, 21 states have (on average 10.904761904761905) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:23,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:11:23,978 INFO L93 Difference]: Finished difference Result 211621 states and 271836 transitions. [2024-12-02 12:11:23,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 12:11:23,978 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.904761904761905) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 12:11:23,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:11:24,125 INFO L225 Difference]: With dead ends: 211621 [2024-12-02 12:11:24,125 INFO L226 Difference]: Without dead ends: 143843 [2024-12-02 12:11:24,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2024-12-02 12:11:24,158 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 11079 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11079 SdHoareTripleChecker+Valid, 5030 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:11:24,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11079 Valid, 5030 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:11:24,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143843 states. [2024-12-02 12:11:28,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143843 to 142367. [2024-12-02 12:11:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142367 states, 142365 states have (on average 1.2708390404945036) internal successors, (180923), 142366 states have internal predecessors, (180923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:29,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142367 states to 142367 states and 180923 transitions. [2024-12-02 12:11:29,173 INFO L78 Accepts]: Start accepts. Automaton has 142367 states and 180923 transitions. Word has length 106 [2024-12-02 12:11:29,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:11:29,174 INFO L471 AbstractCegarLoop]: Abstraction has 142367 states and 180923 transitions. [2024-12-02 12:11:29,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.904761904761905) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:29,174 INFO L276 IsEmpty]: Start isEmpty. Operand 142367 states and 180923 transitions. [2024-12-02 12:11:29,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 12:11:29,176 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:11:29,176 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:11:29,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:11:29,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:29,377 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:11:29,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:11:29,377 INFO L85 PathProgramCache]: Analyzing trace with hash 920069993, now seen corresponding path program 1 times [2024-12-02 12:11:29,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:11:29,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957737014] [2024-12-02 12:11:29,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:29,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:11:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:29,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:11:29,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957737014] [2024-12-02 12:11:29,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957737014] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:11:29,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589838818] [2024-12-02 12:11:29,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:29,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:29,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:11:29,699 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:11:29,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 12:11:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:29,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 12:11:29,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:11:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:30,354 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:11:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:31,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589838818] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:11:31,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:11:31,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-12-02 12:11:31,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544212044] [2024-12-02 12:11:31,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:11:31,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 12:11:31,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:11:31,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 12:11:31,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-12-02 12:11:31,187 INFO L87 Difference]: Start difference. First operand 142367 states and 180923 transitions. Second operand has 26 states, 26 states have (on average 10.615384615384615) internal successors, (276), 25 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:38,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:11:38,563 INFO L93 Difference]: Finished difference Result 355577 states and 452304 transitions. [2024-12-02 12:11:38,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 12:11:38,564 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.615384615384615) internal successors, (276), 25 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 12:11:38,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:11:38,800 INFO L225 Difference]: With dead ends: 355577 [2024-12-02 12:11:38,800 INFO L226 Difference]: Without dead ends: 215015 [2024-12-02 12:11:38,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=499, Invalid=1853, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 12:11:38,862 INFO L435 NwaCegarLoop]: 1547 mSDtfsCounter, 19956 mSDsluCounter, 8266 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19956 SdHoareTripleChecker+Valid, 9813 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:11:38,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19956 Valid, 9813 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:11:38,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215015 states. [2024-12-02 12:11:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215015 to 212751. [2024-12-02 12:11:46,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212751 states, 212749 states have (on average 1.2560858100390602) internal successors, (267231), 212750 states have internal predecessors, (267231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:46,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212751 states to 212751 states and 267231 transitions. [2024-12-02 12:11:46,566 INFO L78 Accepts]: Start accepts. Automaton has 212751 states and 267231 transitions. Word has length 106 [2024-12-02 12:11:46,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:11:46,567 INFO L471 AbstractCegarLoop]: Abstraction has 212751 states and 267231 transitions. [2024-12-02 12:11:46,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.615384615384615) internal successors, (276), 25 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:11:46,567 INFO L276 IsEmpty]: Start isEmpty. Operand 212751 states and 267231 transitions. [2024-12-02 12:11:46,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:11:46,570 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:11:46,571 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:11:46,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 12:11:46,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:46,771 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:11:46,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:11:46,772 INFO L85 PathProgramCache]: Analyzing trace with hash -199933127, now seen corresponding path program 1 times [2024-12-02 12:11:46,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:11:46,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852499490] [2024-12-02 12:11:46,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:46,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:11:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:47,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:11:47,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852499490] [2024-12-02 12:11:47,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852499490] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:11:47,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274400195] [2024-12-02 12:11:47,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:11:47,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:11:47,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:11:47,542 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:11:47,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 12:11:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:11:47,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 12:11:47,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:11:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:48,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:11:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:11:49,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274400195] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:11:49,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:11:49,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 16] total 39 [2024-12-02 12:11:49,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189163222] [2024-12-02 12:11:49,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:11:49,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-12-02 12:11:49,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:11:49,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-12-02 12:11:49,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1303, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 12:11:49,797 INFO L87 Difference]: Start difference. First operand 212751 states and 267231 transitions. Second operand has 39 states, 39 states have (on average 7.897435897435898) internal successors, (308), 39 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:12:00,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:00,617 INFO L93 Difference]: Finished difference Result 299205 states and 374728 transitions. [2024-12-02 12:12:00,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 12:12:00,617 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 7.897435897435898) internal successors, (308), 39 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 12:12:00,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:00,809 INFO L225 Difference]: With dead ends: 299205 [2024-12-02 12:12:00,809 INFO L226 Difference]: Without dead ends: 216515 [2024-12-02 12:12:00,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1782 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1579, Invalid=5561, Unknown=0, NotChecked=0, Total=7140 [2024-12-02 12:12:00,851 INFO L435 NwaCegarLoop]: 1528 mSDtfsCounter, 9821 mSDsluCounter, 26130 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9821 SdHoareTripleChecker+Valid, 27658 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:00,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9821 Valid, 27658 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 12:12:00,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216515 states. [2024-12-02 12:12:07,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216515 to 188495. [2024-12-02 12:12:07,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188495 states, 188493 states have (on average 1.2521791260152897) internal successors, (236027), 188494 states have internal predecessors, (236027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:12:07,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188495 states to 188495 states and 236027 transitions. [2024-12-02 12:12:07,675 INFO L78 Accepts]: Start accepts. Automaton has 188495 states and 236027 transitions. Word has length 108 [2024-12-02 12:12:07,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:07,676 INFO L471 AbstractCegarLoop]: Abstraction has 188495 states and 236027 transitions. [2024-12-02 12:12:07,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 7.897435897435898) internal successors, (308), 39 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:12:07,676 INFO L276 IsEmpty]: Start isEmpty. Operand 188495 states and 236027 transitions. [2024-12-02 12:12:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:12:07,678 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:07,678 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:12:07,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 12:12:07,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:07,879 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:12:07,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1816933945, now seen corresponding path program 1 times [2024-12-02 12:12:07,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:12:07,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707391928] [2024-12-02 12:12:07,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:07,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:12:08,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:08,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707391928] [2024-12-02 12:12:08,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707391928] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:08,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119266352] [2024-12-02 12:12:08,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:08,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:08,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:08,659 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:08,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 12:12:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:08,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 12:12:08,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:10,459 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:12:10,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:12:12,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119266352] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:12:12,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:12:12,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 14] total 37 [2024-12-02 12:12:12,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731866725] [2024-12-02 12:12:12,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:12,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 12:12:12,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:12,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 12:12:12,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1187, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 12:12:12,075 INFO L87 Difference]: Start difference. First operand 188495 states and 236027 transitions. Second operand has 37 states, 37 states have (on average 7.621621621621622) internal successors, (282), 37 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:12:37,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:37,555 INFO L93 Difference]: Finished difference Result 641601 states and 804556 transitions. [2024-12-02 12:12:37,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-12-02 12:12:37,556 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 7.621621621621622) internal successors, (282), 37 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 12:12:37,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:38,091 INFO L225 Difference]: With dead ends: 641601 [2024-12-02 12:12:38,091 INFO L226 Difference]: Without dead ends: 567283 [2024-12-02 12:12:38,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4207 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=2478, Invalid=11328, Unknown=0, NotChecked=0, Total=13806 [2024-12-02 12:12:38,152 INFO L435 NwaCegarLoop]: 1597 mSDtfsCounter, 18110 mSDsluCounter, 22866 mSDsCounter, 0 mSdLazyCounter, 2861 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18110 SdHoareTripleChecker+Valid, 24463 SdHoareTripleChecker+Invalid, 2942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:38,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18110 Valid, 24463 Invalid, 2942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 2861 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 12:12:38,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567283 states. [2024-12-02 12:12:53,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567283 to 307731. [2024-12-02 12:12:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307731 states, 307729 states have (on average 1.242378846322576) internal successors, (382316), 307730 states have internal predecessors, (382316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:12:54,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307731 states to 307731 states and 382316 transitions. [2024-12-02 12:12:54,350 INFO L78 Accepts]: Start accepts. Automaton has 307731 states and 382316 transitions. Word has length 108 [2024-12-02 12:12:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:54,350 INFO L471 AbstractCegarLoop]: Abstraction has 307731 states and 382316 transitions. [2024-12-02 12:12:54,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.621621621621622) internal successors, (282), 37 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:12:54,350 INFO L276 IsEmpty]: Start isEmpty. Operand 307731 states and 382316 transitions. [2024-12-02 12:12:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:12:54,352 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:54,352 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:12:54,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 12:12:54,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 12:12:54,553 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:12:54,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:54,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1364235975, now seen corresponding path program 1 times [2024-12-02 12:12:54,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:12:54,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792034734] [2024-12-02 12:12:54,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:54,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:12:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:55,334 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:12:55,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:12:55,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792034734] [2024-12-02 12:12:55,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792034734] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:55,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607624687] [2024-12-02 12:12:55,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:55,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:12:55,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:12:55,336 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:12:55,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 12:12:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:55,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:12:55,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:56,111 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:12:56,111 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:57,131 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:12:57,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607624687] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:12:57,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:12:57,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-12-02 12:12:57,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631517320] [2024-12-02 12:12:57,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:12:57,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 12:12:57,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:12:57,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 12:12:57,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=955, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 12:12:57,132 INFO L87 Difference]: Start difference. First operand 307731 states and 382316 transitions. Second operand has 33 states, 33 states have (on average 7.9393939393939394) internal successors, (262), 33 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:13:17,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:17,539 INFO L93 Difference]: Finished difference Result 569432 states and 705621 transitions. [2024-12-02 12:13:17,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-12-02 12:13:17,540 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 7.9393939393939394) internal successors, (262), 33 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 12:13:17,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:18,073 INFO L225 Difference]: With dead ends: 569432 [2024-12-02 12:13:18,073 INFO L226 Difference]: Without dead ends: 417236 [2024-12-02 12:13:18,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1544 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1493, Invalid=4987, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 12:13:18,162 INFO L435 NwaCegarLoop]: 1574 mSDtfsCounter, 11787 mSDsluCounter, 25295 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11787 SdHoareTripleChecker+Valid, 26869 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:18,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11787 Valid, 26869 Invalid, 2224 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 12:13:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417236 states. [2024-12-02 12:13:30,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417236 to 254821. [2024-12-02 12:13:30,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254821 states, 254819 states have (on average 1.2379885330371754) internal successors, (315463), 254820 states have internal predecessors, (315463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:13:31,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254821 states to 254821 states and 315463 transitions. [2024-12-02 12:13:31,089 INFO L78 Accepts]: Start accepts. Automaton has 254821 states and 315463 transitions. Word has length 108 [2024-12-02 12:13:31,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:31,089 INFO L471 AbstractCegarLoop]: Abstraction has 254821 states and 315463 transitions. [2024-12-02 12:13:31,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.9393939393939394) internal successors, (262), 33 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:13:31,089 INFO L276 IsEmpty]: Start isEmpty. Operand 254821 states and 315463 transitions. [2024-12-02 12:13:31,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:13:31,091 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:13:31,091 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:13:31,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 12:13:31,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 12:13:31,291 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:13:31,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:13:31,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1426607925, now seen corresponding path program 1 times [2024-12-02 12:13:31,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:13:31,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997458456] [2024-12-02 12:13:31,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:31,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:13:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:13:31,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:13:31,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997458456] [2024-12-02 12:13:31,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997458456] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:13:31,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854883603] [2024-12-02 12:13:31,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:31,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:13:31,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:13:31,810 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:13:31,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 12:13:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:31,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:13:31,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:13:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:13:33,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:13:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:13:33,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854883603] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:13:33,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:13:33,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29 [2024-12-02 12:13:33,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753468299] [2024-12-02 12:13:33,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:13:33,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 12:13:33,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:13:33,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 12:13:33,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=707, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:13:33,784 INFO L87 Difference]: Start difference. First operand 254821 states and 315463 transitions. Second operand has 29 states, 29 states have (on average 9.448275862068966) internal successors, (274), 29 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:13:47,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:47,772 INFO L93 Difference]: Finished difference Result 354057 states and 436141 transitions. [2024-12-02 12:13:47,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 12:13:47,773 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.448275862068966) internal successors, (274), 29 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 12:13:47,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:48,115 INFO L225 Difference]: With dead ends: 354057 [2024-12-02 12:13:48,115 INFO L226 Difference]: Without dead ends: 271877 [2024-12-02 12:13:48,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=409, Invalid=1571, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 12:13:48,153 INFO L435 NwaCegarLoop]: 1547 mSDtfsCounter, 13026 mSDsluCounter, 19764 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13026 SdHoareTripleChecker+Valid, 21311 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:48,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13026 Valid, 21311 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:13:48,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271877 states. [2024-12-02 12:13:59,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271877 to 229779. [2024-12-02 12:14:00,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229779 states, 229777 states have (on average 1.2366598919822263) internal successors, (284156), 229778 states have internal predecessors, (284156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:14:00,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229779 states to 229779 states and 284156 transitions. [2024-12-02 12:14:00,282 INFO L78 Accepts]: Start accepts. Automaton has 229779 states and 284156 transitions. Word has length 110 [2024-12-02 12:14:00,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:00,282 INFO L471 AbstractCegarLoop]: Abstraction has 229779 states and 284156 transitions. [2024-12-02 12:14:00,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.448275862068966) internal successors, (274), 29 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:14:00,282 INFO L276 IsEmpty]: Start isEmpty. Operand 229779 states and 284156 transitions. [2024-12-02 12:14:00,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 12:14:00,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:00,285 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:00,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 12:14:00,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 12:14:00,486 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:00,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:00,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1376216317, now seen corresponding path program 1 times [2024-12-02 12:14:00,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:00,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500630549] [2024-12-02 12:14:00,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:00,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:14:00,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:00,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500630549] [2024-12-02 12:14:00,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500630549] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:14:00,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:14:00,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:14:00,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182400980] [2024-12-02 12:14:00,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:14:00,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:14:00,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:00,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:14:00,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:14:00,566 INFO L87 Difference]: Start difference. First operand 229779 states and 284156 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:14:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:14,857 INFO L93 Difference]: Finished difference Result 232787 states and 288988 transitions. [2024-12-02 12:14:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:14:14,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-12-02 12:14:14,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:15,040 INFO L225 Difference]: With dead ends: 232787 [2024-12-02 12:14:15,040 INFO L226 Difference]: Without dead ends: 231283 [2024-12-02 12:14:15,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:14:15,064 INFO L435 NwaCegarLoop]: 702 mSDtfsCounter, 1041 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:15,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 709 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 12:14:15,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231283 states. [2024-12-02 12:14:25,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231283 to 231281. [2024-12-02 12:14:25,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231281 states, 231279 states have (on average 1.2371508005482557) internal successors, (286127), 231280 states have internal predecessors, (286127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:14:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231281 states to 231281 states and 286127 transitions. [2024-12-02 12:14:26,049 INFO L78 Accepts]: Start accepts. Automaton has 231281 states and 286127 transitions. Word has length 142 [2024-12-02 12:14:26,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:26,049 INFO L471 AbstractCegarLoop]: Abstraction has 231281 states and 286127 transitions. [2024-12-02 12:14:26,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:14:26,049 INFO L276 IsEmpty]: Start isEmpty. Operand 231281 states and 286127 transitions. [2024-12-02 12:14:26,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 12:14:26,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:26,062 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:26,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 12:14:26,062 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:26,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:26,062 INFO L85 PathProgramCache]: Analyzing trace with hash 403535302, now seen corresponding path program 1 times [2024-12-02 12:14:26,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:26,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738725397] [2024-12-02 12:14:26,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 22 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:14:26,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:26,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738725397] [2024-12-02 12:14:26,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738725397] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:14:26,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960007656] [2024-12-02 12:14:26,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:26,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:26,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:14:26,645 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:14:26,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 12:14:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:26,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 12:14:26,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:14:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:14:31,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:14:37,324 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:14:37,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960007656] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:14:37,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:14:37,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 24, 24] total 57 [2024-12-02 12:14:37,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077435655] [2024-12-02 12:14:37,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:14:37,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-12-02 12:14:37,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:37,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-12-02 12:14:37,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=2930, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 12:14:37,326 INFO L87 Difference]: Start difference. First operand 231281 states and 286127 transitions. Second operand has 58 states, 58 states have (on average 7.896551724137931) internal successors, (458), 57 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:15:51,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:15:51,679 INFO L93 Difference]: Finished difference Result 704481 states and 875281 transitions. [2024-12-02 12:15:51,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 316 states. [2024-12-02 12:15:51,680 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.896551724137931) internal successors, (458), 57 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2024-12-02 12:15:51,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:15:52,272 INFO L225 Difference]: With dead ends: 704481 [2024-12-02 12:15:52,272 INFO L226 Difference]: Without dead ends: 535868 [2024-12-02 12:15:52,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 370 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52369 ImplicationChecksByTransitivity, 42.8s TimeCoverageRelationStatistics Valid=17338, Invalid=120674, Unknown=0, NotChecked=0, Total=138012 [2024-12-02 12:15:52,390 INFO L435 NwaCegarLoop]: 1736 mSDtfsCounter, 44632 mSDsluCounter, 34153 mSDsCounter, 0 mSdLazyCounter, 10624 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44632 SdHoareTripleChecker+Valid, 35889 SdHoareTripleChecker+Invalid, 11016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 10624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:15:52,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44632 Valid, 35889 Invalid, 11016 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [392 Valid, 10624 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-12-02 12:15:52,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535868 states. [2024-12-02 12:16:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535868 to 368813. [2024-12-02 12:16:15,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368813 states, 368811 states have (on average 1.231774540347224) internal successors, (454292), 368812 states have internal predecessors, (454292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368813 states to 368813 states and 454292 transitions. [2024-12-02 12:16:16,155 INFO L78 Accepts]: Start accepts. Automaton has 368813 states and 454292 transitions. Word has length 166 [2024-12-02 12:16:16,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:16:16,156 INFO L471 AbstractCegarLoop]: Abstraction has 368813 states and 454292 transitions. [2024-12-02 12:16:16,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.896551724137931) internal successors, (458), 57 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:16,156 INFO L276 IsEmpty]: Start isEmpty. Operand 368813 states and 454292 transitions. [2024-12-02 12:16:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 12:16:16,172 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:16,172 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:16,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-12-02 12:16:16,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:16,372 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:16,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:16,373 INFO L85 PathProgramCache]: Analyzing trace with hash 331485333, now seen corresponding path program 1 times [2024-12-02 12:16:16,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:16:16,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661222295] [2024-12-02 12:16:16,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:16,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:16:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 42 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:17,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:16:17,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661222295] [2024-12-02 12:16:17,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661222295] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:16:17,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100020984] [2024-12-02 12:16:17,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:17,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:16:17,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:16:17,055 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:16:17,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 12:16:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:17,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 12:16:17,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:16:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 16 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:20,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:16:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 16 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:23,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100020984] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:16:23,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:16:23,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 18] total 45 [2024-12-02 12:16:23,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236723918] [2024-12-02 12:16:23,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:16:23,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-12-02 12:16:23,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:16:23,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-12-02 12:16:23,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1807, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 12:16:23,769 INFO L87 Difference]: Start difference. First operand 368813 states and 454292 transitions. Second operand has 45 states, 45 states have (on average 10.622222222222222) internal successors, (478), 45 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:17:29,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:17:29,942 INFO L93 Difference]: Finished difference Result 843091 states and 1030388 transitions. [2024-12-02 12:17:29,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2024-12-02 12:17:29,943 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 10.622222222222222) internal successors, (478), 45 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2024-12-02 12:17:29,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:17:30,766 INFO L225 Difference]: With dead ends: 843091 [2024-12-02 12:17:30,766 INFO L226 Difference]: Without dead ends: 593175 [2024-12-02 12:17:30,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12440 ImplicationChecksByTransitivity, 29.9s TimeCoverageRelationStatistics Valid=5439, Invalid=31617, Unknown=0, NotChecked=0, Total=37056 [2024-12-02 12:17:30,859 INFO L435 NwaCegarLoop]: 1599 mSDtfsCounter, 29945 mSDsluCounter, 23092 mSDsCounter, 0 mSdLazyCounter, 3580 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29945 SdHoareTripleChecker+Valid, 24691 SdHoareTripleChecker+Invalid, 3779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 3580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:17:30,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29945 Valid, 24691 Invalid, 3779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [199 Valid, 3580 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 12:17:31,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593175 states. [2024-12-02 12:18:02,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593175 to 451206. [2024-12-02 12:18:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451206 states, 451204 states have (on average 1.2189652574002003) internal successors, (550002), 451205 states have internal predecessors, (550002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:18:03,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451206 states to 451206 states and 550002 transitions. [2024-12-02 12:18:03,435 INFO L78 Accepts]: Start accepts. Automaton has 451206 states and 550002 transitions. Word has length 167 [2024-12-02 12:18:03,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:18:03,435 INFO L471 AbstractCegarLoop]: Abstraction has 451206 states and 550002 transitions. [2024-12-02 12:18:03,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 10.622222222222222) internal successors, (478), 45 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:18:03,436 INFO L276 IsEmpty]: Start isEmpty. Operand 451206 states and 550002 transitions. [2024-12-02 12:18:03,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 12:18:03,452 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:18:03,452 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:18:03,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 12:18:03,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 12:18:03,653 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:18:03,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:18:03,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2037702032, now seen corresponding path program 1 times [2024-12-02 12:18:03,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:18:03,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845507079] [2024-12-02 12:18:03,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:18:03,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:18:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:18:05,016 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 25 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:18:05,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:18:05,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845507079] [2024-12-02 12:18:05,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845507079] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:18:05,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406432885] [2024-12-02 12:18:05,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:18:05,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:18:05,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:18:05,018 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:18:05,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b7ca2f-b53a-4e9c-949e-284caedf58be/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 12:18:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:18:05,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 12:18:05,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:18:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 42 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:18:08,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:18:13,348 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 42 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:18:13,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406432885] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:18:13,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:18:13,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 51 [2024-12-02 12:18:13,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118852404] [2024-12-02 12:18:13,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:18:13,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 12:18:13,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:18:13,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 12:18:13,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2361, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 12:18:13,350 INFO L87 Difference]: Start difference. First operand 451206 states and 550002 transitions. Second operand has 51 states, 51 states have (on average 9.176470588235293) internal successors, (468), 51 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:20:23,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:20:23,818 INFO L93 Difference]: Finished difference Result 1393147 states and 1698212 transitions. [2024-12-02 12:20:23,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 269 states. [2024-12-02 12:20:23,819 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 9.176470588235293) internal successors, (468), 51 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2024-12-02 12:20:23,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:20:25,279 INFO L225 Difference]: With dead ends: 1393147 [2024-12-02 12:20:25,280 INFO L226 Difference]: Without dead ends: 1132679 [2024-12-02 12:20:25,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38422 ImplicationChecksByTransitivity, 51.4s TimeCoverageRelationStatistics Valid=10486, Invalid=90320, Unknown=0, NotChecked=0, Total=100806 [2024-12-02 12:20:25,793 INFO L435 NwaCegarLoop]: 1807 mSDtfsCounter, 31241 mSDsluCounter, 41304 mSDsCounter, 0 mSdLazyCounter, 10772 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31241 SdHoareTripleChecker+Valid, 43111 SdHoareTripleChecker+Invalid, 10964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 10772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:20:25,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31241 Valid, 43111 Invalid, 10964 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [192 Valid, 10772 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2024-12-02 12:20:26,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132679 states.